发明名称 |
IMPROVED ENERGY UTILIZATION IN A SOLUTION POLYMERIZATION PLANT |
摘要 |
An improved solution polymerization process wherein energy consumption is reduced comprising: i) injecting ethylene, solvent, catalyst, α-olefins and hydrogen into at least one reactor to produce a polyethylene in a single liquid phase solution; ii) deactivating the single liquid phase solution; iii) passing the deactivated solution into a vapor/liquid separator forming a bottom stream of polyethylene rich solvent and a gaseous overhead stream; iv) passing not more than 40% of the gaseous overhead stream to distillation; v) condensing the remainder of the gaseous overhead stream to form a recycle stream, while generating low pressure steam; vi) passing the recycle stream through a means for oligomer removal; vii) passing the recycle stream through a lights separator; viii) passing the recycle stream through a purification step; ix) collecting the recycle stream in a recycle drum, passing the recycle stream through a pump and injecting a high pressure recycle stream into said reactors. |
申请公布号 |
WO2014138854(A1) |
申请公布日期 |
2014.09.18 |
申请号 |
WO2014CA00160 |
申请日期 |
2014.03.04 |
申请人 |
NOVA CHEMICALS (INTERNATIONAL) S.A.;PRICE, TERRI A.;SIBTAIN, FAZLE;CHELUGET, ERIC |
发明人 |
PRICE, TERRI A.;SIBTAIN, FAZLE;CHELUGET, ERIC |
分类号 |
C08F2/01;C08F2/06;C08F6/02;C08F6/06 |
主分类号 |
C08F2/01 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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